Semina cover with photograph of Cameron, 1955, Wallace Berman. Semina journal, no. 1 (1955) by Wallace Berman. Gelatin silver print mounted on cardstock. 7 1/2 x 4 in. The Getty Research Institute, 2564-801.no1.2. Courtesy of the Estate of Wallace Berman and Michael Kohn Gallery, Los Angeles

Semina cover with Wife (photograph of Shirley Berman), 1959, Wallace Berman. Semina journal, no. 4 (1959) by Wallace Berman. Halftone reproduction on cardstock. 9 7/16 x 8 x 1/16 in. The Getty Research Institute, 2564-801.no1.2. Courtesy of the Estate of Wallace Berman and Michael Kohn Gallery, Los Angeles

Stage II, 1958, Karl Benjamin. Oil on canvas. 50 x 70 in. Collection of Louis Stern. © Karl Benjamin, courtesy Louis Stern Fine Arts. ©Photography by Gerard Vuilleumier

Wallace Berman with a copy of Semina no. 1 in the Stone Brothers Printing display window, 1957. The Getty Research Institute, Charles Brittin papers, 2005.M.11.17. © J. Paul Getty Trust. Photo by Charles Brittin

Ed Moses in his studio, 1958. The Getty Research Institute, Mizuno Gallery Records, 2010.M.84. Gift of Riko Mizuno

Arthur Richer and Wallace Berman at Syndell Studio in Los Angeles, 1957. Richer’s art is in the background. The Getty Research Institute, Charles Brittin papers, 2005.M.11.16. © J. Paul Getty Trust. Image courtesy of Lauri Richer. Photo by Charles Brittin

Untitled, 1959, Henry Takemoto. Stoneware with iron and cobalt brushwork. 26 3/4 x 27 3/4 in. Collection of Pier Voulkos. © Henry Takemoto. Photo by Joe Schopplein

Untitled (Art is Love is God), 1955, Robert Alexander. Wooden box, photograph, bullet, and paper. 3 7/16 x 6 7/16 x 3 5/16 in. The Getty Research Institute, Charles Brittin Papers, 2005.M.11.29. Courtesy of the Temple of Man, Inc.

Untitled (Peyote Vision), 1955, Cameron (from Semina journal, no. 1). Reproduction of ink drawing mounted on cardstock. 3 13/16 x 4 in. Courtesy of Cameron Parsons Foundation

Up with in, 1957–58, Frederick Hammersley. Oil on linen. 47 7/8 x 36 in. Pomona College Museum of Art, Claremont, CA. Museum purchase with funds provided by the Estate of Walter and Elise Mosher. © The Frederick Hammersley Foundation. Photo: Schenck & Schenck, Claremont

Video: George Herms speaks about his work, March 2011

Video: John Mason speaks about his work, March 2010

Video: Billy Al Bengston speaks about his work, March 2010

Video: Ed Ruscha speaks about his work, April 2011

Video: Irving Blum, John Mason, and Billy Al Bengston speak about the work of Peter Voulkos, 2010–11